BIOS archive for the Acer Aspire ES1-531 on board 14285-1, a 3.21 MB ZIP. The five-digit number with a dash revision follows Wistron numbering, the ODM behind this Acer design. The name gives no BIOS version or chip size, so open the archive to check what it holds before use. A dump like this is written to the SPI flash with a programmer such as CH341A when the laptop has no display, loops on power or the BIOS is corrupt. Save the original chip contents first and make sure the image size matches the chip.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @afsbiosfree. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →